Daily weather brief – Friday, September 16, 2016

NWPAC outlook, 16 SEP

NORTH

Remnant moisture from MERANTI continues to spread over much of the north region, combining with a stalled frontal boundary, and an additional incoming surge of cooler air, to bring considerable cloudiness, showers, and few thunderstorms to much of the region. Temperatures will be falling a bit through the weekend across the north region, as autumn gets a firmer grasp on the region ahead of the equinox next week. In addition, Typhoon 18W MALAKAS is expected to move into the region over the weekend, affecting the Ryukyu Islands of Japan this weekend, and the mainland islands of southern Japan early next week.

CENTRAL

Attention is focused on Typhoon 18W MALAKAS, also named “Gener” by the Philippines’ state weather agency PAGASA, as it slowly strengthens and moves in a general west northwesterly direction. Current forecasts call for the system to come perilously close to northern Taiwan this weekend, before turning to the north and northeast towards Japan. For more on this system, please see the ‘tropics’ section of this update. Elsewhere across the central region, moisture from MERANTI has cleared out of the region, but plenty of tropical moisture remains in place. Most continental locales will see scattered clouds today, while offshore locations stand a good chance for afternoon showers and thunderstorms.

SOUTH

Deep, tropical moisture is in place over the south region as we approach the traditional peak of the tropical cyclone season in the region. For now, Typhoon 18W MALAKAS, also named “Gener” by the Philippines’ state weather agency PAGASA, is moving through the northeastern corner of the region as it slowly strengthens and tracks to the west-northwest towards northern Taiwan. Most locations across the south region will see a good chance for afternoon showers and thunderstorms today, as the available moisture gets a lift from the intense afternoon sun.

TROPICS

With MERANTI’s exit from the picture, things seem to be settling down a bit in the tropics with one named system, and another potential threat.

TAAG, 16 SEP

Typhoon 18W MALAKAS, also named “Gener” by the Philippines’ state weather agency PAGASA, is moving through the Philippine Sea as it slowly strengthens and tracks to the west-northwest towards northern Taiwan. Current forecasts keep the system away from any major populated areas, although a VERY close brush of northern Taiwan is anticipated, which will bring very stormy conditions to residents there through the weekend. This system is not expected to reach the strength levels of MERANTI, but will be a formidable system in its own right, and should be monitored carefully if you are in the potential path.

18W full, 16 SEP

94W INVEST remains weak and disorganized as it deals with relatively hostile conditions thanks to a large T.U.T.T. (Tropical Upper-Tropospheric Trough) to the east, and a tightly closed upper-level low pressure area to its north. This system is not expected to develop into anything significant.

94W INVEST, 16 SEP

Elsewhere across the tropics, plentiful moisture will team up with the intense afternoon sun to generate showers and thunderstorms across many locales throughout the region later today.

Have a fabulous Friday!

Courtesy: CIMSS, Tropical Tidbits, JMA, JTWC, Intellicast, WUnderground.com, N.R.L., RAMMB-NOAA

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